: In Device Manager, for each USB Root Hub, go to Properties > Power Management and uncheck "Allow the computer to turn off this device to save power."

Plug the USB cable of the soundbar directly into a functioning USB port on your laptop (avoid using unpowered USB hubs).

The Philips official support pages state the system requirements as "any USB-enabled PC with Windows 98SE, ME, 2000, XP, or Vista". While this appears to exclude Windows 10, the device still relies on the usbaudio2.sys driver—Microsoft's built-in driver for USB audio class devices.

According to the user who discovered this method, the soundbar immediately began working after performing this final enable step. The downside is that you'll need to repeat these steps each time you want to use the SPA5210, but it serves as a reliable fallback when other methods fail.

To check if it worked, click the in your system tray (bottom right corner) and click the arrow above the volume slider to see if "Philips SPA5210" or "USB Audio Device" appears in your playback list. Step 2: Update Drivers via Windows Device Manager

A: Try adjusting the volume using both Windows volume controls and the physical dial on the soundbar. Additionally, in Windows Sound settings, ensure the volume isn't limited and check if any audio enhancements are enabled that might reduce output.

The yellow triangle vanished. The little speaker icon in the taskbar regained its waves.

While the Philips SPA5210 is an older peripheral, its USB plug-and-play nature means it is highly compatible with Windows 10. Usually, Windows will handle the driver installation automatically. If not, using DriverIdentifier to acquire the necessary USB audio class driver or checking device manager for updates will solve most issues. By ensuring your USB ports are supplying enough power, your soundbar should function flawlessly.

If Windows claims you already have the best driver but the speaker still refuses to work, you must force a clean reinstallation of the native Windows 10 USB audio driver.

Right-click the button and select Device Manager . Expand the Sound, video and game controllers section.